How-to: Grails 3.0.2 + Oracle Database 12c?

Question

I am making my first steps with Grails and try to create a hello world application with an Oracle Database 12c.

Unfortunately the tutorial documentation on the datab

Answer 1

yes this will be OK for meanwhile. But there are details missing. I'll post detailed instructions as soon as i get to the office. Actually there is a sample for mySql somewhere on the grails site, and from it it's pretty clear how to make same for an oracle DB.

I just have created a new app and compared it with myne for oracle 11g. Here it is:

1. ./build.gradle, add following line to "dependencies" section:

   runtime "com.oracle:ojdbc14:10.2.0.3.0"

2. ./grails-app/conf/application.yml, add following to "hibernate" section:

jdbc:
    use_get_generated_keys: true

3. ./grails-app/conf/application.yml, dataSource: section should be like:

dataSource:
    pooled: true
    jmxExport: true
    driverClassName: oracle.jdbc.OracleDriver
    username: YOURUSERNAME
    password: yoursecret

4. ./grails-app/conf/application.yml, environments: configuration, all three environments should be like:

environments:
development:
    dataSource:
        dbCreate: create
        url: jdbc:oracle:thin:@somehost.net:1521:YOURORAINSTANCE
test:
    dataSource:
        dbCreate: update
        url: jdbc:oracle:thin:@somehost.net:1521:YOURORAINSTANCE
production:
    dataSource:
        dbCreate: update
        url: jdbc:oracle:thin:@somehost.net:1521:YOURORAINSTANCE

And the Hibernate dialect for Oracle you have is pretty old one, I think you'd better remove it, without specifying it explicitly all works fine.